import sys
import  math
import fractions
from collections import defaultdict
stdin = sys.stdin
     
ns = lambda: stdin.readline().rstrip()
ni = lambda: int(stdin.readline().rstrip())
nm = lambda: map(int, stdin.readline().split())
nl = lambda: list(map(int, stdin.readline().split()))
 
X=int(input())
ans=0
if(400<=X and X<=599):
    ans=8
if(600<=X and X<=799):
    ans=7
if(800<=X and X<=999):
    ans=6
if(1000<=X and X<=1199):
    ans=5
if(1200<=X and X<=1399):
    ans=4
if(1400<=X and X<=1599):
    ans=3
if(1600<=X and X<=1799):
    ans=2
if(1800<=X and X<=1999):
    ans=1
 
print(ans) import sys sys import  math math import fractions fractions from collections import defaultdict stdin = sys.stdin stdin sys.stdin sys stdin ns = lambda: stdin.readline().rstrip() ns lambda: stdin.readline().rstrip() stdin.readline().rstrip() stdin.readline().rstrip stdin.readline() stdin.readline stdin readline rstrip ni = lambda: int(stdin.readline().rstrip()) ni lambda: int(stdin.readline().rstrip()) int(stdin.readline().rstrip()) int stdin.readline().rstrip() stdin.readline().rstrip stdin.readline() stdin.readline stdin readline rstrip nm = lambda: map(int, stdin.readline().split()) nm lambda: map(int, stdin.readline().split()) map(int, stdin.readline().split()) map int stdin.readline().split() stdin.readline().split stdin.readline() stdin.readline stdin readline split nl = lambda: list(map(int, stdin.readline().split())) nl lambda: list(map(int, stdin.readline().split())) list(map(int, stdin.readline().split())) list map(int, stdin.readline().split()) map int stdin.readline().split() stdin.readline().split stdin.readline() stdin.readline stdin readline split X=int(input()) X int(input()) int input() input ans=0 ans 0 if(400<=X and X<=599):
    ans=8 400<=X and X<=599 400<=X 400 X X<=599 X 599 ans=8 ans 8 if(600<=X and X<=799):
    ans=7 600<=X and X<=799 600<=X 600 X X<=799 X 799 ans=7 ans 7 if(800<=X and X<=999):
    ans=6 800<=X and X<=999 800<=X 800 X X<=999 X 999 ans=6 ans 6 if(1000<=X and X<=1199):
    ans=5 1000<=X and X<=1199 1000<=X 1000 X X<=1199 X 1199 ans=5 ans 5 if(1200<=X and X<=1399):
    ans=4 1200<=X and X<=1399 1200<=X 1200 X X<=1399 X 1399 ans=4 ans 4 if(1400<=X and X<=1599):
    ans=3 1400<=X and X<=1599 1400<=X 1400 X X<=1599 X 1599 ans=3 ans 3 if(1600<=X and X<=1799):
    ans=2 1600<=X and X<=1799 1600<=X 1600 X X<=1799 X 1799 ans=2 ans 2 if(1800<=X and X<=1999):
    ans=1
  1800<=X and X<=1999 1800<=X 1800 X X<=1999 X 1999 ans=1 ans 1 print(ans) print ans ans=6 6 ans ans=2 2 ans ans=8 8 ans ans=1 1 ans nm = lambda: map(int, stdin.readline().split()) lambda: map(int, stdin.readline().split()) nm ans=3 3 ans ni = lambda: int(stdin.readline().rstrip()) lambda: int(stdin.readline().rstrip()) ni stdin = sys.stdin sys.stdin stdin nl = lambda: list(map(int, stdin.readline().split())) lambda: list(map(int, stdin.readline().split())) nl ans=5 5 ans ans=7 7 ans X=int(input()) int(input()) X ns = lambda: stdin.readline().rstrip() lambda: stdin.readline().rstrip() ns ans=4 4 ans ans=0 0 ans
import sys
import  math
import fractions
from collections import defaultdict
stdin = sys.stdin
     
ns = lambda: stdin.readline().rstrip()
ni = lambda: int(stdin.readline().rstrip())
nm = lambda: map(int, stdin.readline().split())
nl = lambda: list(map(int, stdin.readline().split()))
 
X=int(input())
ans=0
if(400<=X and X<=599):
    ans=8
if(600<=X and X<=799):
    ans=7
if(800<=X and X<=999):
    ans=6
if(1000<=X and X<=1199):
    ans=5
if(1200<=X and X<=1399):
    ans=4
if(1400<=X and X<=1599):
    ans=3
if(1600<=X and X<=1799):
    ans=2
if(1800<=X and X<=1999):
    ans=1
 
print(ans)